Renewable Energy-Driven Integration of Algae Photobioreactors in Wineries for Cost-Efficient Protein Production

Ensuring a consistent and adequate supply of protein is becoming increasingly critical due to the combined effects of climate change and a growing world population. Algae cultivation has emerged as a viable solution to meet this need. This paper highlights the importance of protein in current and anticipated future food systems and provides an overview of algae cultivation techniques. Among these, photobioreactors stand out for their efficiency, low water requirements and reduced risk of contamination. However, one of the major challenges is the high cost of both lighting and carbon dioxide, which is essential for algae growth. To address this challenge, we present an innovative approach that integrates algae photobioreactor systems into wineries. Wineries produce a significant amount of carbon dioxide during the fermentation process, which can be reused for algae cultivation. In addition, energy demand in wineries is highly seasonal, making it complex to determine the optimal size of renewable energy systems and storage. By integrating an algae system, energy demand can be more evenly distributed throughout the year, while providing an additional revenue stream for wineries. In summary, this paper proposes a synergistic relationship between wineries and algae cultivation, highlighting a sustainable solution to pressing global challenges.